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CPT-20 20-24 32-26 44.48 <br /> OU -3 TPHg 120 110 100 y , <br /> CPT-04 19-23 CPT-14 TPHd 1 , 100 240 380 <br /> TPHg 3, 800 TPHmo 11400 <470 490 w ` f <br /> TPHd 31 , 000 CPT-20 BTEX NT NT NT G-B7-0U3 20 �» ♦ ' � <br /> TPHmo 259000 G -B8-OU3 TEq NT NT NT TPHg <50 <br /> BTEX NT ?RY-1 TPHd <71 <br /> TRY-14B <br /> TEQ NT CPT15 <br /> TPHmo 771 <br /> BTEX ND TRY-5 16-20 / DUP I EXPLANATION <br /> TRY-16 G -B7=0U3 � q ND ' TPHd 7100 / < 100 / <br /> ZZ <br /> A0I -6 TPHd w/ SG NT / NT ° � ` r . F- � .- South -1 ® Proposed soil/groundwater sampling location <br /> South -4 , . _ CPT-9® . . CPT-15 20.24 BTEX ND / ND <br /> G-B8.OU3 22 � . , � TPHd TPHg «9 TRY-7 TRY-78 � ltOU2-A017-S5 TEQ ND / ND Operable unit ( OU ) <br /> 9 ` . . <br /> TPH 1 ,400 TPHmo <490 141 / <br /> TPHd 190, 000 BTEX NT f�TRY-6 Area of interest (AOI ) <br /> • � OU2-A016 -S5 OU -2 I p <br /> TPHmo 61 , 000 � TEQ NT �` �` , ` � sample location <br /> Benzene 70.5 �mf <br /> _^ <br /> Toluene 15 Previous soil sample location <br /> Ethylbenzene 6. 6 ` WRY-5 I TRY-8 <br /> Xylene1 11 . 2 _ TRY-1'o ! Previous and groundwater <br /> TEQ NT TRY-1 ■ ous so <br /> ..�, � ' • � ,TRY-a I sample location <br /> TRY-6 2527 3052 <br /> © South -6 South-7 �' TPHd 220 J 79 J / OU2-A014-S3 <br /> _ __ tl TRY-12 Previous groundwater sample location <br /> TPHd w/ SG < 100 < 100 <`"4I OU2•A014-S1 <br /> TRY-7 TRY•7B BTEX ND ND j t TRY-3� Petroleum hydrocarbons detected <br /> CPT-9 20-24 - TEQ ND 0. 071 " � <br /> TPHg 750 16-20 2328 28-33 3338 � , , ,� �•� � , TRY-3B am OU2-A014S1 20 in groundwater TPH > 100 pg/L <br /> mmm TPHd 22, 000 J 68 J < 100 < 100 . • <br /> TPHd 749 = s a � � . 7M 610 <br /> TPHmo <490 TPHd w/ SG 15, 000 J < 100 NT NT TRYS TRYJB Petroleum hydrocarbon affected soil <br /> BTEX NT BTEX ND ND ND ND 2325 2830 3338 4346 � . TPHmo 7500 noted in boring or TPH > 100 mg/kg <br /> TEQ NT s TEQ 0. 006 0. 0058 0. 032 0. 0065 BTEX ND <br /> f TPHd 79 J 280 J < 100 < 100 <br /> TPHd w/ SG < 100 220 J NT NT TRY-11 � Q NT Former Tidewater Associated Oil <br /> TRY-14 TRY-146 BTEX ND ND ND ND Company (TAOC ) pipeline <br /> 29 446/DUP 51 -56 56 61M5�166 TEQ ND O. OD97 ND ND <br /> TPHd 100J 370 J 1420 J 10D J 82 J , _ Former Old Valley Pipeline ( OVP ) <br /> TPHd tv/ SG < 100 7150 / 7150 < 100 < 100TEX ND ND/ND ND ND j �. Groundwater flow direction <br /> TEQ ND ND / ND ND ND South •10 <br /> Ir ir 411111 <br /> M1 (@s0uth•8 j Sample ID <br /> . % _ Sample depth interval <br /> 2) ;� - } In feet below ground <br /> surface (bgs) <br /> 4k < TRYw6 2527 30 32 <br /> 1 TPHd 220 J 79 J <br /> TPHd w! SG < 100 U 7100 U <br /> - t BTEX ND ND <br /> TEQ ND 0. 071 <br /> ®Sout" hsK + Concentration of <br /> e constituent in pg/L <br /> Constituents <br /> a i <br /> E - / !� � 1 <br /> -1low <br /> rnl is ;1 <br /> n Notes : <br /> 1 . TPH = total petroleum hydrocarbons . <br /> of `Wow I — 2 . TPHg = total petroleum hydrocarbons quantified as gasoline . <br /> 3 . TPHd = total petroleum hydrocarbons quantified as diesel . <br /> C)I 4 . TPHmo = total petroleum hydrocarbons quantified as motor oil . <br /> 'V i1 5 . BTEX = benzene , toluene , ethylbenzene , and xylenes . GROUNDWATER SAMPLE ANALYTICAL DATA <br /> 6. TEQ = benz(a) pyrene toxicity equivalent. <br /> 7 . ND = not detected above the respective laboratory <br /> TRACY RAIL YARD SOUTHERN BOUNDARY - EAST <br /> j reporting limit. Tracy Rail Yard Off Site South Area <br /> 8 . NT = not tested Tracy, California <br /> 9 . < = not detected above the laboratory reporting limit shown . <br /> 10 . J = target analyte was positively identified , numerical valueIII g JLP Date : 7/5/2011 Pro ect No . OD11161140 <br /> 1 '0,01 0 ' 400 - is approximate . y ' I <br /> o Flet / 11 . /L = micrograms per liter. re <br /> 0 i p9 9 P Figure <br /> r� , __— - - -_ _ - - -- AMEC Geomatrix 4 <br />